Sahih al-Bukhari 5108
صحيح البخاري#5108SahihNarrated Jabir:Allah's Messenger (ﷺ) forbade that a woman should be married to man along with her paternal or maternal aunt
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 67:46